Washington, D.C. is currently the richest U.S. city, and led the 24/7 Wall St.‘s Top 10 list of America’s richest cities, which was based on the U.S. Census Bureau‘s 2011 American Community Survey. The nation’s capital is reportedly filled with tens of thousands of highly-skilled professionals in various fields.

Washington, D.C. areaImage Credit: Nicholas Kamm/AFP/Getty Images

According to the post at 247WallSt.com on Thursday, October 4, 2012, the data released by the U.S. Census Bureau last month shows that the median household income in the U.S. is 2011 is $50,502; and has dropped for two consecutive years. Washington, D.C. had a median household income of $86,680.

As noted in the report, the biggest factor for the economy growth of the city is what kind of employment it has. Alex Friedhoff, a Research Analyst at Brookings Institute’s Metropolitan Policy Program noted that the high-tech jobs, particularly those related to computers and information technology that tend to pay higher.

On the other hand, among those employed that are included in the lower-income jobs are working in retail, service, agriculture, and low-tech manufacturing, in which around 11.6% of all U.S. workers are employed in retail. Hot Springs in Arkansas was noted to have 17.3% of its workforce is employed in retail.

For Washington, D.C. and its surrounding nearby areas, which was said to be the richest U.S. city today, 24/7 Wall St. said that its median household income was more than twice the national figure of $173,600; and that 4.5% of their homes cost more than $1 million, compared to only 2% nationwide.

Below is the list of the top 10 America’s richest cities, as summarized from 247WallSt.com; which include their Median household income, Population, Unemployment rate, and Percentage of households below poverty line, as well their rankings on the three contributing factors.